App Dev Worksheet: Part 2 Test

App development lesson 16: Designing apps: Part 2 test · Set 533 · 40 questions

Developer's tip (Think like the user): First decide which topic the question is about. Use that lesson’s rule: 48 px buttons, 16 px text, the screen stack, the flow order. For code, count positions from 0.

1. 1.🔢 In a sign-up flow, which comes FIRST? (a) open the app (b) tap “Sign up” (c) see the home screen (d) type name and email
2. 2.True or false: whether users get lost is about UI (the look). (a) False (b) True
3. 3.🔘 Is this good or poor button design: space between buttons? (a) good design (b) poor design
4. 4.Which of these fits saving on the phone? (a) photos on two devices (b) a shared to-do list (c) chat messages to friends (d) notes to read offline
5. 5.🖼️ In this wireframe (top to bottom), what is right above the Save button?
   [ big picture ]
   [ list of items ]
   [ tab bar ]
   [ menu icon ]
   [ Save button ] (a) list of items (b) big picture (c) tab bar (d) menu icon
6. 6.🔢 In a sign-up flow, which comes first: “tap “Sign up”” or “enter the code sent”? (a) enter the code sent (b) tap “Sign up”
7. 7.🔍 Which is the odd one out? (a) the button colours (b) how many taps it takes (c) the font size (d) the screen layout
8. 8.♿ What does a screen reader do? (a) reads the screen aloud (b) plays music (c) takes photos (d) makes text tiny
9. 9.💾 Where should the app save the sound on/off setting: on the phone or in the cloud? (a) in the cloud (b) on the phone
10. 10.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Label: 19 px
    Caption: 24 px
    Footer: 24 px
11. 11.💾 What number does this code show?
    let friends = ["Riya", "Arjun", "Kabir"];
    friends.push("Meera");
    show(friends.length);
12. 12.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 16 px
    Menu: 17 px
    Caption: 11 px
    Body text: 20 px (a) Body text (b) Title (c) Caption (d) Menu
13. 13.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Offers → Pens → Shop → Address → Menu → Item
    Design B: Home → Search → Offers → Size (a) Design B (b) Design A
14. 14.🔘 Is this good or poor button design: icons with no meaning? (a) good design (b) poor design
15. 15.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) helps everyone (b) makes it harder
16. 16.🎨 A beautiful app that confuses everyone has ___. (a) good UX but poor UI (b) no UI at all (c) good UI but poor UX (d) perfect UX
17. 17.Which of these fits saving on the phone? (a) photos on two devices (b) a class leaderboard (c) your last game level (d) a shared to-do list
18. 18.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Friend list”
    2. open “Help page”
    3. open “Edit photo”
    4. tap the Quiz tab
    5. open “Video”
    Which screen are you on now? (a) Video (b) Edit photo (c) Help page (d) Friend list
19. 19.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) makes it harder (b) helps everyone
20. 20.🌗 Is black on yellow easy or hard to read on a button? (a) easy to read (b) hard to read
21. 21.True or false: a tiny 20 px button is poor button design. (a) False (b) True
22. 22.🎨 Fewer taps to finish a task usually means ___. (a) worse UX (b) a bigger app (c) better UX (d) more colours
23. 23.💾 Data saved only on the phone is lost when ___. (a) you send a message (b) the phone is lost (c) the screen turns off (d) the app is closed
24. 24.✏️ Is this true of a wireframe or of a final design: looks like the real app? (a) a wireframe (b) a final design
25. 25.👆 Two designs for the same task (each arrow is one tap). Which needs FEWER taps?
    Design A: Home → Confirm → Pens
    Design B: Home → Pay → Menu → Address (a) Design B (b) Design A
26. 26.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Caption: 15 px
    Title: 10 px
    Menu: 23 px
    Footer: 22 px
    Label: 12 px
27. 27.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ Add button ]
    [ title text ]
    [ filter buttons ]
    [ menu icon ]
    [ top bar ] (a) top bar (b) Add button (c) title text (d) menu icon
28. 28.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Match report”
    2. tap the Feed tab
    3. open “Score card”
    4. tap the Settings tab
    5. open “Badges”
    How many times must you tap Back to reach the main screen of this tab?
29. 29.Which colour pair is hard to read? (a) white on dark green (b) dark blue on black (c) black on yellow (d) white on black
30. 30.💾 pop() takes off the last item. What does this code show?
    let friends = ["Kabir", "Zoya", "Riya", "Aman", "Meera"];
    friends.pop();
    show(friends[friends.length - 1]); (a) Kabir (b) Zoya (c) Riya (d) Aman
31. 31.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 11 px
    Label: 20 px
    Hint: 22 px
    Body text: 21 px (a) Title (b) Hint (c) Label (d) Body text
32. 32.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
33. 33.👆 Two designs for the same task (each arrow is one tap). How many taps does the shorter design save?
    Design A: Home → Results → Offers → Cart → Shop → Address
    Design B: Home → Cart → Shop → Pens → Menu
34. 34.Which of these is true of the back button? (a) switches main sections (b) hides extra links (c) undoes one move (d) opens a list of pages
35. 35.♿ Accessibility means an app works for ___. (a) nobody (b) only the coder (c) only experts (d) everyone
36. 36.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. open “Match report”
    3. open “Video”
    4. tap the Lessons tab
    5. open “Map”
    Which screen are you on now? (a) Video (b) Lessons (c) Map (d) Match report
37. 37.🖼️ In this wireframe (top to bottom), which part is at the very bottom?
    [ menu icon ]
    [ big picture ]
    [ Save button ]
    [ tab bar ]
    [ title text ] (a) tab bar (b) title text (c) menu icon (d) big picture
38. 38.🧭 The app has tabs Feed, Chat, Settings. You start on Feed, then:
    1. open “Map”
    2. tap the Feed tab
    3. open “Badges”
    4. open “Help page”
    5. tap the Chat tab
    Which screen are you on now? (a) Chat (b) Badges (c) Map (d) Help page
39. 39.🧭 Which part of navigation opens a list of pages? (a) the back button (b) a tab bar (c) a menu button
40. 40.🧭 The app has tabs Lessons, Quiz, Me. You start on Lessons, then:
    1. open “Match report”
    2. tap the Quiz tab
    3. open “Video”
    Which screen are you on now? (a) Quiz (b) Match report (c) Lessons (d) Video

Free app development lessons, practice and worksheets at talentjr.in/app-development-for-students